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Can someone please help me out and give me the formula for this question, I have my C&G level 3 301 exam coming up in 3 weeks and im undertaking 5 hours revision a day. I did this kind of question at the start of the year but I have forgot the formula and cant find it anywhere..

A single phase circuit dissipates 2.5 kW of power and operates at a power factor of 0.95. The current flowing will be :